Cisco devices / Webex
Cloud-registered Cisco video devices use outbound Webex signalling and negotiated media. Cloud registration, on-premises SIP and Webex Calling are separate deployment profiles.
Scope: Cisco devices / Webex — requirements depend on the selected profile.
platform · Catalog reviewed 2026-09-27
Related requirements
Review these entries for the services used in your design.
By Cisco
Infrastructure Requirements
- Cloud registration and outbound Webex service access
- DNS and certificate trust
- the exact endpoint media policy and any required proxy configuration.
Network & Physical Requirements
| Port / allocation | Transport | Connection / signal flow | Feature and requirement | Evidence |
|---|---|---|---|---|
| 443 | TCP | Cisco video device → Webex service | Profile requirement · Core HTTPS/WSS cloud signalling Cloud-registered Cisco video devices | Source checked 2026-09-27 Webex Services - Port Numbers and Protocols |
| 5004 | TCP | Cisco video device → Webex media service | Optional · TCP fallback Media fallback Webex documented TCP fallback; confirm device row | Source checked 2026-09-27 Webex Services - Port Numbers and Protocols |
| 5004 | UDP | Cisco video device → Webex media node | Profile requirement · Core Webex SRTP audio/video/content Cloud-registered Cisco video devices; 9 September 2026 inventory Use the current Webex media destination networks. Connection originates at the cloud-registered device. | Source checked 2026-09-27 Webex Services - Port Numbers and Protocols |
| 9000 | UDP | Cisco video device → Webex media node | Profile requirement · Core Webex SRTP audio/video/content Cloud-registered Cisco video devices; 9 September 2026 inventory Use the current Webex media destination networks. Connection originates at the cloud-registered device. | Source checked 2026-09-27 Webex Services - Port Numbers and Protocols |
| 443 | TCP | Cisco device → Webex media node | Optional · TLS media fallback SRTP over TLS media fallback Cloud-registered Webex apps and Cisco video devices Fallback after UDP/TCP; Cisco discourages TLS media in production. Use the media subnet list, separately from signaling URLs. | Source checked 2026-09-27 Webex Services – Port Numbers and Protocols: SRTP over TLS |
Gotchas & IT Notes
- ⚠Use the current destination URL list for signalling and IP networks for media. Cloud signalling IP addresses can change.
- ⚠Cloud-registered devices initiate connections outward. SIP-based services and Expressway have different inbound/outbound requirements.